Installation of FYH Bearing Assemblies with Eccentric Retaining Rings

When the FYH bearing is installed on the shaft with an eccentric fixed ring, the eccentric part of the outer diameter surface of the end of the bearing inner ring is combined with the eccentric concave part set on the eccentric fixed ring, rotate the eccentric fixed ring, and tighten the set screw of the eccentric fixed ring , fix the bearing on the shaft. The torque of the shaft acts to increase the tightening force between the eccentric retaining ring and the shaft, so the assembly with the eccentric retaining ring can ensure the reliable fixing of the bearing (Figure 14.9). The installation procedure of FYH rolling bearing with eccentric retaining ring is shown below. (1) Check whether the rigidity of the base, the flatness of the mounting surface, and the dimensional tolerance of the shaft are qualified. Also, check whether there are any problems such as bending, scratches, burrs, etc. on the shaft. (2) Insert the FYH seated bearing into the shaft and place it in the specified position. (3) Set the bearing with seat at the fixed position of the base and fix it with bolts. Use a torque wrench to tighten the bearing housing mounting bolts to the specified torque. For the mounting torque of the mounting bolts, please refer to Appendix 3 at the end of the volume. (4) Insert the eccentric concave part of the eccentric fixed ring into the eccentric part of the bearing inner ring, rotate the eccentric fixed ring along the rotation direction of the shaft and fix it on the bearing inner ring, and then tighten the set screw of the eccentric fixed ring with the specified torque (Figure 14.10). ). For the tightening torque of the stop screw, please refer to Appendix 4 at the end of the volume. (5) After turning the shaft by hand, fix the eccentric fixing ring of the bearing with seat on the other side in the bearing, and then tighten the set screw of the eccentric fixing ring with the specified torque. (6) Finally, turn the shaft by hand to check whether the rotation state of the bearing is abnormal.